Headphone



FIG. 1 is a top view of the headphone;

FIG. 2 is a cross sectional view of the headphone taken along line 2-2 of FIG. 1;

FIG. 3 is a view of the right side of the headphone. The view from the left side being a mirror image thereof;

FIG. 4 is a rear view of the headphone;

FIG. 5 is a front view of the headphone;

FIG. 6 is a bottom view of the headphone; and,

FIG. 7 is an angled perspective view of the headphone.

The broken line of FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a headphone, as shown and described. 